CN117524570A - High-temperature-resistant double-layer ceramic mica fireproof wire - Google Patents
High-temperature-resistant double-layer ceramic mica fireproof wire Download PDFInfo
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- CN117524570A CN117524570A CN202311610230.5A CN202311610230A CN117524570A CN 117524570 A CN117524570 A CN 117524570A CN 202311610230 A CN202311610230 A CN 202311610230A CN 117524570 A CN117524570 A CN 117524570A
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- insulating layer
- electric wire
- mica
- high temperature
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- 239000010445 mica Substances 0.000 title claims abstract description 56
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 56
- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 96
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000000243 solution Substances 0.000 claims abstract description 39
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 38
- 239000007864 aqueous solution Substances 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 26
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 25
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 25
- -1 polyethylene Polymers 0.000 claims abstract description 21
- 239000004698 Polyethylene Substances 0.000 claims abstract description 19
- 229920000573 polyethylene Polymers 0.000 claims abstract description 19
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 19
- 240000003183 Manihot esculenta Species 0.000 claims abstract description 17
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims abstract description 17
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000013312 flour Nutrition 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 25
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 17
- 238000002791 soaking Methods 0.000 claims description 15
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052792 caesium Inorganic materials 0.000 claims description 8
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical group CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 8
- FYCBRGMZDWYEHI-UHFFFAOYSA-N oxetane-3-carbaldehyde Chemical compound O=CC1COC1 FYCBRGMZDWYEHI-UHFFFAOYSA-N 0.000 claims description 8
- MUGSTXRSLGJVOB-UHFFFAOYSA-N 2-[2-[2-(6-methylheptanoyloxy)ethoxy]ethoxy]ethyl 6-methylheptanoate Chemical compound C(CCCCC(C)C)(=O)OCCOCCOCCOC(CCCCC(C)C)=O MUGSTXRSLGJVOB-UHFFFAOYSA-N 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 6
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 5
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 5
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000000643 oven drying Methods 0.000 claims description 5
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 abstract description 11
- 238000004132 cross linking Methods 0.000 abstract description 11
- 229920002472 Starch Polymers 0.000 abstract description 6
- 238000009830 intercalation Methods 0.000 abstract description 6
- 230000002687 intercalation Effects 0.000 abstract description 6
- 239000008107 starch Substances 0.000 abstract description 6
- 235000019698 starch Nutrition 0.000 abstract description 6
- 230000002195 synergetic effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 239000012153 distilled water Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 6
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 4
- 150000005690 diesters Chemical class 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005886 esterification reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical group CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012991 xanthate Substances 0.000 description 2
- OWBTYPJTUOEWEK-IMJSIDKUSA-N (S,S)-butane-2,3-diol Chemical compound C[C@H](O)[C@H](C)O OWBTYPJTUOEWEK-IMJSIDKUSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- 206010000369 Accident Diseases 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- CXPHSWDCSMIRFM-UHFFFAOYSA-N C(COCCOCCO)O.C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC Chemical compound C(COCCOCCO)O.C(C=1C(C(=O)OCCCCCCCC)=CC=CC1)(=O)OCCCCCCCC CXPHSWDCSMIRFM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N p-toluenesulfonic acid Substances CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 125000005489 p-toluenesulfonic acid group Chemical group 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The application relates to a high-temperature-resistant double-layer ceramic mica fireproof electric wire, which comprises an electric wire main body, wherein the electric wire main body comprises a conductor, an inner insulating layer and an outer insulating layer; the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution and antimony trioxide. The gas barrier property is achieved by utilizing talcum powder with a body-type reticular layer structure and nano boron nitride with plane orientation of a lamellar layer; in the presence of sodium nitrite and sulfuric acid aqueous solution, the tapioca flour, sodium hydroxide and carbon disulfide react to obtain starch bisxanthate, and then the starch bisxanthate is coated on talcum powder and nano boron nitride in a crosslinking way to form a crosslinking mixture with a mixed intercalation structure; the silane coupling agent realizes crosslinking with polyethylene and improves the surface activity, and then is blended with a crosslinking mixture with a mixed intercalation structure to generate a synergistic effect, and the synergistic effect with antimony trioxide improves the flame retardance and high temperature resistance of the outer insulating layer.
Description
Technical Field
The application relates to the technical field of wires, in particular to a high-temperature-resistant double-layer ceramic mica fireproof wire.
Background
With the development of the power industry, the data communication industry, the urban rail transit industry and the like, the requirements of various industries on the electric wires are higher and higher, and in use, the electric wires are prevented from being mechanically damaged, insulated damaged, aged and deteriorated, and the like, and are also fireproof.
The chinese patent publication No. CN101295558A discloses an insulated wire comprising a high-adhesion resin layer composed of a polyamideimide resin containing a compound having a polar group in the molecular structure of an insulating material, and a high-flexibility resin layer provided on the high-adhesion resin layer.
With respect to the related art mentioned above, the inventors consider that some of the current wires are poor in high temperature resistance and fire resistance, and still have to be improved.
Disclosure of Invention
In order to improve the high-temperature-resistant fireproof performance of the electric wire, the application provides a high-temperature-resistant double-layer ceramic mica fireproof electric wire.
The application provides a high temperature resistant double-deck ceramic mica fireproof wire adopts following technical scheme:
the high-temperature-resistant double-layer ceramic mica fireproof wire comprises a wire body, wherein the wire body comprises a conductor, an inner insulating layer wrapped on the outer layer of the conductor and an outer insulating layer wrapped on the outer layer of the inner insulating layer;
the outer insulating layer comprises the following components in parts by weight:
50-60 parts of polyethylene;
1-2 parts of a silane coupling agent;
3-4 parts of talcum powder;
2-3 parts of nano boron nitride;
6-8 parts of tapioca flour;
3-4 parts of carbon disulfide;
1-1.5 parts of sodium hydroxide solution;
1-2 parts of sodium nitrite;
2-3 parts of sulfuric acid aqueous solution;
1-2 parts of antimonous oxide.
By adopting the technical scheme, the talcum powder has a body-type reticular layer structure, the nano boron nitride has the planar orientation of a lamellar layer, has higher gas barrier property, further obtains the starch bisxanthate through the reaction of the tapioca powder, the sodium hydroxide and the carbon disulfide in the presence of the aqueous solution of the sodium nitrite and the sulfuric acid, and then is coated on the talcum powder and the nano boron nitride in a crosslinking way to form a crosslinking mixture with a mixed intercalation structure; the silane coupling agent realizes crosslinking with polyethylene and improves the surface activity, then is blended with a crosslinking mixture with a mixed intercalation structure to generate a synergistic effect, and is further mixed with antimony trioxide to improve the flame retardance and high temperature resistance of the outer insulating layer in a synergistic manner; meets the requirements of the A-type flame-retardant bundled combustion test of IEC60332-3-22 standard, can prevent flame from spreading during combustion, is not easy to support combustion, and effectively avoids the diffusion of fire accidents.
Preferably, the outer insulating layer further comprises 3-5 parts by weight of triethylene glycol diisooctyl ester.
By adopting the technical scheme, the addition of a small amount of triethylene glycol di-isooctanoate is more beneficial to the interfacial interaction between starch di-xanthate, talcum powder, nano boron nitride and other inorganic components; meanwhile, the triethylene glycol diisooctyl ester has ultraviolet irradiation resistance and helps to prolong the service life of the outer insulating layer.
Preferably, the outer insulating layer further comprises 2 to 3 parts by weight of phthalic acid, 2 to 4 parts by weight of (2 s,3 s) - (+) -2, 3-butanediol and 0.1 to 0.2 parts by weight of a catalyst.
By adopting the technical scheme, the ortho-phthalic acid with the aromatic ring and the (2S, 3S) - (+) -2, 3-butanediol are subjected to esterification reaction, so that the obtained diester product with the rigid aromatic ring can be further cooperated with triethylene glycol dioctyl ester under the action of a catalyst, the rigidity of a molecular chain, the concentration of components and the cohesive force are increased, and the high temperature resistance is improved.
Preferably, the catalyst is silica gel loaded cesium phosphotungstate, and the preparation method comprises the following steps: soaking silica gel in 25% -30% hydrogen peroxide for 15-20min; soaking in 30-35% cesium carbonate solution for 20-25min, oven drying at 110-120deg.C, and roasting at 280-300 deg.C for 2-3 hr; finally, soaking the mixture in 30-35% phosphotungstic acid solution for 20-25min, drying the mixture at 110-120 ℃, and roasting the mixture at 280-300 ℃ for 2-3h.
By adopting the technical scheme, the preparation of the silica gel-supported cesium phosphotungstate serving as a catalyst has good catalytic effect, not only provides catalytic effect for esterification reaction of o-phthalic acid and (2S, 3S) - (+) -2, 3-butanediol, but also assists in catalyzing the reaction synergy of diester products and triethylene glycol dioctyl ester.
Preferably, the inner insulating layer is ceramic mica.
By adopting the technical scheme, the ceramic mica tape is utilized, and the glass powder on the surface can form ceramic calcium at high temperature under long-time high temperature, so that a conductor is protected and power is continuously supplied.
Preferably, the preparation method of the ceramic mica comprises the following steps: mixing 6-8 parts of mica powder with 8-10 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 25-30min, adding 2-3 parts of KH-550, stirring at 50-60 ℃ for reaction for 1.5-2h, adding 2-3 parts of oxetane-3-formaldehyde and 0.8-1 part of sodium bicarbonate, and reacting for 2-3h to obtain modified mica powder;
the modified mica powder and 2-3 parts of glass powder are mixed according to the weight part ratio of 3:1, mixing, pressing, roasting, hot-press forming and annealing.
By adopting the technical scheme, the surface of the mica powder is modified through KH-550, silicon hydroxyl generated by hydrolysis is chemically bonded with hydroxyl on the surface of the mica, and the amino at the other end is subjected to aldehyde condensation reaction with oxetane-3-formaldehyde to modify the mica, so that cohesion and high temperature resistance are improved.
Preferably, the silane coupling agent is vinyl trimethoxy silane; the sodium hydroxide solution was 40% sodium hydroxide solution, and the sulfuric acid aqueous solution was 70% sulfuric acid aqueous solution.
In summary, the present application includes the following beneficial technical effects:
1. the talcum powder has a body-type reticular layer structure, the nano boron nitride has the planar orientation of a lamellar layer and has higher gas barrier property, the starch bisxanthate is further obtained through the reaction of the tapioca powder, the sodium hydroxide and the carbon disulfide in the presence of the sodium nitrite and the sulfuric acid aqueous solution, and then the crosslinked mixture with a mixed intercalation structure is formed by coating the talcum powder and the nano boron nitride in a crosslinking manner; the silane coupling agent realizes crosslinking with polyethylene and improves the surface activity, and then is blended with a crosslinking mixture with a mixed intercalation structure to generate a synergistic effect, so that the antimony trioxide can improve the flame retardance and high temperature resistance of the outer insulating layer;
2. the addition of a small amount of triethylene glycol di-isooctanoate is more beneficial to the interfacial interaction between starch di-xanthate, talcum powder, nano boron nitride and other inorganic components; meanwhile, the triethylene glycol diisooctyl ester has ultraviolet irradiation resistance and is used for helping to prolong the service life of the outer insulating layer; the ortho-benzene adipic acid with aromatic rings and (2S, 3S) - (+) -2, 3-butanediol are subjected to esterification reaction, so that a diester product with rigid aromatic rings is obtained, and under the action of the prepared silica gel loaded cesium phosphotungstate serving as a catalyst, the diester product can be further cooperated with triethylene glycol dioctyl phthalate, so that the rigidity of a molecular chain, the component density and the cohesion are increased, and the high temperature resistance is improved;
3. the surface of the mica powder is modified through KH-550, silicon hydroxyl generated by hydrolysis is chemically bonded with hydroxyl on the surface of the mica, and the amino group at the other end is subjected to aldehyde condensation reaction with oxetane-3-formaldehyde to modify the mica, so that the cohesive force and the high temperature resistance are improved, and the ceramic mica is used as an inner insulating layer to further improve the high temperature resistance and fire resistance of the wire.
Detailed Description
The present application is described in further detail below.
In the application, the polyethylene is high-density polyethylene provided by Suzhou old plasticization limited company, zhonghai shell, product number 5021D; the talcum powder is 1250-mesh ultrafine talcum powder provided by Guangzhou high-rise chemical raw material Co., ltd, the silicon dioxide content is 60%, the magnesium oxide content is 30% and the brand GS tablet is obtained; the nanometer boron nitride is provided by Shanghai mao nanometer technology Co., ltd., model MG-BN-100, and has an average grain diameter of 100nm; tapioca flour is provided by Shandong Hongtai biotechnology Co., ltd., product number 789, model 098; antimony trioxide is provided by Henan Hejia chemical products Co., ltd., product number 20200825; the o-phthalic acid is prepared from Yongjia countySupplied by eastern chemical industry limited; the silica gel is 10-degree silica gel provided by Dongguan Yuan-Tai organic silicon Limited company and is of the brand H-1; mica powder supplied by Daikou Chemie mineral Co., ltd., of 325 mesh, loose density of 2.3g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The glass powder is provided by new materials limited company of Mingxian county, 1200 meshes, and the product number is KY-665; (2 s,3 s) - (+) -2, 3-butanediol CAS No.: 19132-06-0.
The raw materials used in the following embodiments may be commercially available from ordinary sources unless otherwise specified.
Examples
Example 1
The embodiment discloses a high-temperature-resistant double-layer ceramic mica fireproof wire, which comprises a wire main body, wherein the wire main body comprises a conductor, an inner insulating layer wrapped on the outer layer of the conductor and an outer insulating layer wrapped on the outer layer of the inner insulating layer; the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution and antimonous oxide, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The inner insulating layer is ceramic mica, and the preparation method of the ceramic mica comprises the following steps: mixing 6 parts of mica powder with 8 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 25min, adding 2 parts of KH-550, stirring at 50 ℃ for reaction for 1.5h, adding 2 parts of oxetane-3-formaldehyde and 0.8 part of sodium bicarbonate, and reacting for 2h to obtain modified mica powder;
the modified mica powder and 2 parts of glass powder are mixed according to the weight part ratio of 3:1, mixing, pressing, roasting, hot-press forming and annealing.
The preparation method of the outer insulating layer comprises the following steps:
adding tapioca flour into 12 parts of distilled water, suspending, sequentially adding sodium hydroxide solution and carbon disulfide, stirring, and reacting for 2 hours at room temperature to obtain a product A;
mixing polyethylene, a silane coupling agent and 20 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride and sodium nitrite, then dropwise adding sulfuric acid aqueous solution, and distilling to remove water when the pH value is 1.0 to obtain an outer insulating layer material; finally extruding the outer insulating layer material through a double screw.
Example 2
The embodiment discloses a high-temperature-resistant double-layer ceramic mica fireproof wire, which comprises a wire main body, wherein the wire main body comprises a conductor, an inner insulating layer wrapped on the outer layer of the conductor and an outer insulating layer wrapped on the outer layer of the inner insulating layer; the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution and antimonous oxide, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The inner insulating layer is ceramic mica, and the preparation method of the ceramic mica comprises the following steps: mixing 8 parts of mica powder with 10 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 30min, adding 3 parts of KH-550, stirring at 60 ℃ for reaction for 2h, adding 3 parts of oxetane-3-formaldehyde and 1 part of sodium bicarbonate, and reacting for 3h to obtain modified mica powder;
the modified mica powder and 3 parts of glass powder are mixed according to the weight part ratio of 3:1, mixing, pressing, roasting, hot-press forming and annealing.
The preparation method of the outer insulating layer comprises the following steps:
adding tapioca flour into 15 parts of distilled water and suspending, sequentially adding sodium hydroxide solution and carbon disulfide, stirring and reacting for 3 hours at room temperature to obtain a product A;
mixing polyethylene, a silane coupling agent and 25 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride and sodium nitrite, then dropwise adding sulfuric acid aqueous solution, and distilling to remove water when the pH value is 1.0 to obtain an outer insulating layer material; finally extruding the outer insulating layer material through a double screw.
Example 3
The embodiment discloses a high-temperature-resistant double-layer ceramic mica fireproof wire, which comprises a wire main body, wherein the wire main body comprises a conductor, an inner insulating layer wrapped on the outer layer of the conductor and an outer insulating layer wrapped on the outer layer of the inner insulating layer; the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution and antimonous oxide, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The inner insulating layer is ceramic mica, and the preparation method of the ceramic mica comprises the following steps: mixing 7 parts of mica powder with 9 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 28min, adding 3 parts of KH-550, stirring at 55 ℃ for reaction for 1.8h, adding 3 parts of oxetane-3-formaldehyde and 0.9 part of sodium bicarbonate, and reacting for 2.5h to obtain modified mica powder;
the modified mica powder and 3 parts of glass powder are mixed according to the weight part ratio of 3:1, mixing, pressing, roasting, hot-press forming and annealing.
The preparation method of the outer insulating layer comprises the following steps:
adding tapioca flour into 14 parts of distilled water and suspending, sequentially adding sodium hydroxide solution and carbon disulfide, stirring and reacting for 2.5 hours at room temperature to obtain a product A;
mixing polyethylene, a silane coupling agent and 22 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride and sodium nitrite, then dropwise adding sulfuric acid aqueous solution, and distilling to remove water when the pH value is 1.0 to obtain an outer insulating layer material; finally extruding the outer insulating layer material through a double screw.
Example 4
The difference from example 1 is that this example discloses a high temperature resistant double-layer ceramic mica fireproof wire, and the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution, antimony trioxide, triethylene glycol diisooctyl ester, o-phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The catalyst is silica gel loaded cesium phosphotungstate, and the preparation method comprises the following steps: soaking silica gel in 25% hydrogen peroxide for 15min; soaking in 30% cesium carbonate solution for 20min, oven drying at 110deg.C, and roasting at 280 deg.C for 2 hr; finally, soaking the mixture in 30% phosphotungstic acid solution for 20min, drying the mixture at 110 ℃, and roasting the mixture at 280 ℃ for 2h.
Blending o-phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, and stirring at 70 ℃ for reacting for 1h to obtain a product B;
mixing polyethylene, a silane coupling agent and 20 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride, triethylene glycol di-isooctanoate and sodium nitrite, continuously adding a product B, heating to 70 ℃ and stirring for 50min; cooling to room temperature, dripping sulfuric acid aqueous solution, and distilling to remove water to obtain an outer insulating layer material when the pH value is 1.0; finally extruding the outer insulating layer material through a double screw.
Example 5
The difference from example 2 is that this example discloses a high temperature resistant double-layer ceramic mica fireproof wire, and the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution, antimony trioxide, triethylene glycol diisooctyl ester, o-phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The catalyst is silica gel loaded cesium phosphotungstate, and the preparation method comprises the following steps: soaking silica gel in 30% hydrogen peroxide for 20min; soaking in 35% cesium carbonate solution for 25min, oven drying at 120deg.C, and roasting at 300deg.C for 3 hr; finally, soaking the mixture in 35% phosphotungstic acid solution for 25min, drying the mixture at 120 ℃, and roasting the mixture at 300 ℃ for 3h.
Blending o-phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, and stirring at 80 ℃ for 2h to obtain a product B;
mixing polyethylene, a silane coupling agent and 25 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride, triethylene glycol di-isooctanoate and sodium nitrite, continuously adding a product B, heating to 80 ℃ and stirring for 60min; cooling to room temperature, dripping sulfuric acid aqueous solution, and distilling to remove water to obtain an outer insulating layer material when the pH value is 1.0; finally extruding the outer insulating layer material through a double screw.
Example 6
The difference from example 3 is that this example discloses a high temperature resistant double-layer ceramic mica fireproof wire, and the outer insulating layer comprises the following components: polyethylene, a silane coupling agent, talcum powder, nano boron nitride, tapioca flour, carbon disulfide, sodium hydroxide solution, sodium nitrite, sulfuric acid aqueous solution, antimony trioxide, triethylene glycol diisooctyl ester, o-phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, wherein the silane coupling agent is vinyl trimethoxy silane, the sodium hydroxide solution is 40% sodium hydroxide solution, the sulfuric acid aqueous solution is 70% sulfuric acid aqueous solution, and the contents of the components are shown in the following table 1.
The catalyst is silica gel loaded cesium phosphotungstate, and the preparation method comprises the following steps: soaking silica gel in 28% hydrogen peroxide for 18min; soaking in 33% cesium carbonate solution for 22min, oven drying at 115deg.C, and roasting at 290 deg.C for 2.5 hr; finally, soaking the mixture in 33% phosphotungstic acid solution for 22min, drying the mixture at 115 ℃, and roasting the mixture at 290 ℃ for 2.5h.
Blending phthalic acid, (2S, 3S) - (+) -2, 3-butanediol and a catalyst, and stirring at 75 ℃ for reacting for 1.5h to obtain a product B;
mixing polyethylene, a silane coupling agent and 22 parts of distilled water, sequentially and uniformly mixing the mixture with a product A, talcum powder, nano boron nitride, triethylene glycol di-isooctanoate and sodium nitrite, continuously adding a product B, heating to 75 ℃ and stirring for 55min; cooling to room temperature, dripping sulfuric acid aqueous solution, and distilling to remove water to obtain an outer insulating layer material when the pH value is 1.0; finally extruding the outer insulating layer material through a double screw.
Example 7
The difference from example 4 is that triethylene glycol di-isooctanoate is replaced with polyvinyl n-butyl ether, and the contents of the components are shown in Table 2 below.
Example 8
The difference from example 4 is that phthalic acid and (2S, 3S) - (+) -2, 3-butanediol were not added, and the contents of the respective components are shown in Table 2 below.
Example 9
The difference from example 7 is that phthalic acid was replaced with benzoic acid, (2S, 3S) - (+) -2, 3-butanediol was replaced with ethanol, and the contents of the respective components are shown in Table 2 below.
Example 10
The difference from example 4 is that the catalyst silica gel supported cesium phosphotungstate was replaced with p-toluenesulfonic acid.
Example 11
The difference from example 1 is that the inner insulating layer is made of 6 parts of mica powder through the processes of compacting, roasting, hot press molding and annealing.
Example 12
The difference from example 1 is that oxetane-3-carbaldehyde from which the ceramized mica was prepared was replaced with acetaldehyde.
Comparative example
Comparative example 1
The difference from example 1 is that nano boron nitride is replaced with 1250 mesh heavy calcium carbonate.
Comparative example 2
The difference from example 1 is that the tapioca flour, sodium hydroxide solution, carbon disulfide, sodium nitrite and sulfuric acid aqueous solution are replaced by polyacrylate emulsion.
TABLE 1 component content tables of examples 1 to 9
The performance detection test method comprises the following steps: the wire samples of each example and comparative example were subjected to a high temperature resistance test, using an air oven temperature of 158.+ -. 1 ℃ and aging for 20 hours, and a tensile strength retention rate was measured to characterize the high temperature resistance, the tensile strength test was referred to ASTM D638-89, the tensile speed was 500mm/min, the tensile strength retention rate= (tensile strength after aging/tensile strength before aging) ×100%, the higher the retention rate, the better the high temperature resistance, and the test results are shown in Table 2 below.
Table 2 results of performance test of each of examples and comparative examples
And the wire sample of example 4 of the present application meets the requirements of the IEC60332-3-22 standard class a flame retardant bundled combustion test and passes the class C test in british BS 6387:2013: the flame temperature is 950-1000, the flame supply time is 180min, and the test voltage is 750V, and the power supply can still be kept uninterrupted under continuous combustion.
The present embodiment is merely for explanation of the present application and does not limit the protection scope of the present application, and those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading the present specification, but are protected by patent laws only within the scope of claims of the present application.
Claims (7)
1. The utility model provides a high temperature resistant double-deck ceramic mica fireproof electric wire, includes the electric wire main part, its characterized in that: the electric wire main body comprises a conductor, an inner insulating layer wrapped on the outer layer of the conductor and an outer insulating layer wrapped on the outer layer of the inner insulating layer;
the outer insulating layer comprises the following components in parts by weight:
50-60 parts of polyethylene;
1-2 parts of a silane coupling agent;
3-4 parts of talcum powder;
2-3 parts of nano boron nitride;
6-8 parts of tapioca flour;
3-4 parts of carbon disulfide;
1-1.5 parts of sodium hydroxide solution;
1-2 parts of sodium nitrite;
2-3 parts of sulfuric acid aqueous solution;
1-2 parts of antimonous oxide.
2. The high temperature resistant double layer ceramic mica fireproof electric wire according to claim 1, wherein: the outer insulating layer further comprises 3-5 parts of triethylene glycol di-isooctanoate in parts by weight.
3. The high temperature resistant double layer ceramic mica fireproof electric wire according to claim 2, wherein: the outer insulating layer further comprises 2-3 parts of phthalic acid, 2-4 parts of (2S, 3S) - (+) -2, 3-butanediol and 0.1-0.2 part of catalyst by weight.
4. A high temperature resistant double layer ceramic mica fireproof electrical wire according to claim 3, wherein: the catalyst is silica gel loaded cesium phosphotungstate, and the preparation method comprises the following steps: soaking silica gel in 25% -30% hydrogen peroxide for 15-20min; soaking in 30-35% cesium carbonate solution for 20-25min, oven drying at 110-120deg.C, and roasting at 280-300 deg.C for 2-3 hr; finally, soaking the mixture in 30-35% phosphotungstic acid solution for 20-25min, drying the mixture at 110-120 ℃, and roasting the mixture at 280-300 ℃ for 2-3h.
5. The high temperature resistant double layer ceramic mica fireproof electric wire according to claim 1, wherein: the inner insulating layer is ceramic mica.
6. The high temperature resistant double layer ceramic mica fireproof electric wire according to claim 5, wherein: the preparation method of the ceramic mica comprises the following steps: mixing 6-8 parts of mica powder with 8-10 parts of absolute ethyl alcohol, performing ultrasonic dispersion for 25-30min, adding 2-3 parts of KH-550, stirring at 50-60 ℃ for reaction for 1.5-2h, adding 2-3 parts of oxetane-3-formaldehyde and 0.8-1 part of sodium bicarbonate, and reacting for 2-3h to obtain modified mica powder;
the modified mica powder and 2-3 parts of glass powder are mixed according to the weight part ratio of 3:1, mixing, pressing, roasting, hot-press forming and annealing.
7. The high temperature resistant double layer ceramic mica fireproof electric wire according to claim 1, wherein: the silane coupling agent is vinyl trimethoxy silane; the sodium hydroxide solution was 40% sodium hydroxide solution, and the sulfuric acid aqueous solution was 70% sulfuric acid aqueous solution.
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